2XG9

Crystal structure of Barley Beta-Amylase complexed with 4-O-alpha-D- glucopyranosylmoranoline

X-RAY DIFFRACTION

---

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1B1Y	PDB ENTRY 1B1Y

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.5	291	CRYSTALS WERE GROWN AT 291 K USING THE HANGING DROP VAPOUR DIFFUSION METHOD WITH PROTEIN AT 10 MG PER ML AND A PRECIPITANT COMPRISED OF 14 PERCENT PEG 3350 IN 100 MM BIS-TRIS PROPANE BUFFER AT PH 5.5

Crystal Properties
Matthews coefficient	Solvent content
1.91	35.6

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 68.582	α = 90
b = 71.237	β = 90
c = 92.304	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	IMAGE PLATE	MAR scanner 345 mm plate	MIRRORS	2007-12-04	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RUH3R

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	1.79	21.81	97.2	0.04	10.48	3.56		41215		-9	14.9

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.8	1.9	98.3		0.11	6.31	3.35

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1B1Y	1.8	21.115	41174	2070	96.778	0.13	0.1277	0.1709	RANDOM	13.9

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]
0.115			0.267		-0.382

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.874
r_dihedral_angle_4_deg	16.004
r_dihedral_angle_3_deg	12.435
r_dihedral_angle_1_deg	7.142
r_scangle_it	3.643
r_scbond_it	2.315
r_angle_refined_deg	1.59
r_mcangle_it	1.488
r_mcbond_it	0.852
r_mcbond_other	0.258
r_symmetry_vdw_other	0.195
r_symmetry_hbond_other	0.12
r_chiral_restr	0.1
r_bond_refined_d	0.017
r_gen_planes_refined	0.008
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_hbond_refined
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3895
Nucleic Acid Atoms
Solvent Atoms	696
Heterogen Atoms	34

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling
AMoRE	phasing